Renaming Sprite Actor in Struct Blueprint, and closing the Editor causes de-reference

Gameplay - Sep 12, 2019

Paper Sprite actor set as a Default Value in a Blueprint Struct is set to none, when the sprite is renamed, saved, and the Engine is restarted. ...

State Machine events "Left State Event" and "Fully Blended State" not firing when animation is sequence is playing

Anim - Gameplay - Aug 28, 2019

State Machine events "Left State Event" and "Fully Blended State" not firing when animation is sequence is playing at the moment you enter/leave the state. ...

Using Interpolative Animation Data into 'Make Dynamic Additive' gives warning "Trying to play a non-additive animation into a pose that is expected to be additive in anim instance"

Anim - Runtime - Jun 6, 2019

Feeding Interpolative non-additive Data into Make Dynamic Additive gives a Warning "Trying to play a non-additive animation  into a pose that is expected to be additive in anim instance" AnimBluepr ...

Procedural Foliage Volume: Simulate() function doesn't work in Blue Print

Tools - Foliage - May 10, 2019

Procedural Foliage Volumes can be resimulated by clicking the Resimulate button. But they can't be resimulated from Blueprints, even if there is a Simulate() function that can be executed. Found in ...

Scrubbing Animation Timeline in Montage does not trigger sound notifies.

Anim - Runtime - May 9, 2019

Scrubbing an Animation Timeline within a Montage does not play a sound for Anim Notifies that specify "Play Sound." ...

Inappropriate description of tool tip when bone is selected in skeleton tree

Anim - Runtime - Mar 11, 2019

According to the report from Licensee, this is because it is displayed when the child's bone has Weight, which is a cause of misunderstanding. ...

Foliage LOD's Screen Size Can't be Set Higher Than 1.5

Tools - Foliage - Jan 31, 2019

Foliage LOD's Screen Size Can't be Set Higher Than 1.5 Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 4827620 ...

Documentation for Geographically Accurate Sun Positioning contains Incorrect Definition for Longitude and Latitude.

Docs - Jan 28, 2019

Incorrect definitions for Latitude/Longitude in Documentation for Geographically accurate sun positioning.  https://docs.unrealengine.com/en-us/Engine/Rendering/LightingAndShadows/SunPositioner Ex ...

UBX Collision Rotation Is Set Incorrectly on FBX Import

Simulation - Physics - Dec 4, 2018

Imported FBXs that use UBX will import their collision rotation incorrectly. You can see this when scaling the collision non-uniformly.  Found in 4.20 CL# 4369336, 4.21 CL# 4541578, and 4.22 CL# 46 ...

nDisplay - DeprojectScreenToWorld alignment is off

Tools - Virtual Production - nDisplay - Dec 3, 2018

Using nDisplay DeprojectScreenToWorld does not have proper alignment when clicking on the screen.  [Link Removed] ...